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Rynersonite Mineral Data |
General Rynersonite Information |
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Ca(Ta,Nb)2O6 | ||
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Molecular Weight = 453.95 gm | ||
Calcium 8.83 % Ca 12.35 % CaO | |||
Tantalum 59.79 % Ta 73.01 % Ta2O5 | |||
Niobium 10.23 % Nb 14.64 % Nb2O5 | |||
Oxygen 21.15 % O | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
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CaTa1.5Nb0.5O6 | ||
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Alteration product of earlier Nb-Ta minerals in some granite pegmatites. | ||
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Approved IMA 1978 | ||
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San Diego mine, Mesa Grande, San Diego Co., California. Link to MinDat.org Location Data. | ||
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Named for Frederick James Rynerson (1882-1960), and his two sons, Buel Frederick Rynerson (1905- ) and Eugene Bonfoey Rynerson (1910- ), long-time pegmatite miners in San Diego Co., California, USA. | ||
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Rynersonite + Pronunciation ![]() |
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ICSD 24091 | ||
PDF 39-1430 | |||
Rynersonite Image | |||
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Rynersonite Crystallography |
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a:b:c =0.6783:1:0.4854 | ||
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a = 7.505, b = 11.063, c = 5.37, Z = 4; V = 445.86 Den(Calc)= 6.76 | ||
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Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pmnb | ||
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By Intensity(I/Io): 3.038(1), 2.964(0.91), 4.835(0.91), | ||
Physical Properties of Rynersonite |
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None | ||
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Beige white, Pink. | ||
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6.402 | ||
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Opaque | ||
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Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | ||
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4.5 - Between Fluorite and Apatite | ||
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Sub Metallic | ||
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white | ||
Optical Properties of Rynersonite |
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NCalc= 2.19 - from Gladstone-Dale relationship (KC = 0.1754) where Ncalc=Dcalc*KC+1 NCalc= 2.12 - from Gladstone-Dale relationship (KC = 0.1754) where Ncalc=Dmeas*KC+1 |
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Calculated Properties of Rynersonite |
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Bulk Density (Electron Density)=5.90 gm/cc note: Specific Gravity of Rynersonite =6.76 gm/cc. |
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Fermion Index = 0.0002924427 Boson Index = 0.9997075573 |
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PERynersonite = 723.64 barns/electron U=PERynersonite x rElectron Density=4,267.32 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Rynersonite is Not Radioactive |
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Rynersonite Classification |
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08.03.07.02 (08)Multiple Oxides with Nb, Ta, and Ti | ||
(08.03)where A (B2O6) | |||
(08.03.07)Dana Group | |||
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04.DF.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate | ||
04.D - Metal:Oxygen = 1:2 and similar | |||
04.DF -With large (� medium-sized) cations; dimers and trimers of edge-sharing octahedra | |||
Other Rynersonite Information |
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NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) | ||
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Links to other databases for Rynersonite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Rynersonite using: Visit our Advertisers for Rynersonite : Ask about Rynersonite here : Print or Cut-and-Paste your Rynersonite Specimen Label here :
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